Topics - JoMa

I'm modelling physical structures using SysML. Naturally the "part of"/ composite association is the right association between two blocks. Now I need a kind of "logical structure" which I do not like to model fully in parallel. Idea is to use a different association to show a dependency of physical elements to the logical unit. The logical unit cannot be treated as a assembly or so, as its parts do not necessarily have a physical connection. It is more a collection of elements which together perform a function.I thought about using the nesting, but I am not sure if this is correct.Any ideas?

unfortunately I run into a problem using properties with decomposition and detailed modelling.Following the method of Oliver Alt (German trainer at OOSE) I build a library containing blocks. In the project model I use properties only. Now I'd like to build a decomposition diagram for functional analysis. That works. But if I model a function in detail using FlowItems in a ibd the subfunctions get nested. So the bdd with the decomposition gets "destroyed". Locking the property helps to avoid the nesting, but every time I move a property I get a warning message.

Is there any other solution? May it be possible to disable the auto-nesting?

I've created a SysML-profile refining the metaclass "property". Everything works fine, except I get an Icon on the top right corner everytime I use my own property. It can be hidden by changing diagram settings (Elements|Use Stereotyp Icons), but I'd like to hide it by default or even better define my own or no icon. Is there a way to do this?I also refined a block, which more or less overwrites the SysML <<block>>. Here no such things happen.